Home / 8,128.66-11,218.47-4,592.10

Finding the Fourth Proportional to 8,128.66, 11,218.47 and 4,592.10

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Solution

The fourth proportional to 8,128.66, 11,218.47 and 4,592.10 is: 6,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.66 : 11,218.47 = 4,592.10 : x
  2. Step 2: Convert to fraction form
    8,128.66/11,218.47 = 4,592.10/x
  3. Step 3: Cross multiply
    8,128.66x = 11,218.47 × 4,592.10
  4. Step 4: Simplify right side
    8,128.66x = 51,516,359.66
  5. Step 5: Solve for x
    x = 51,516,359.66/8,128.66
  6. Step 6: Final answer
    x = 6,337.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.